On 3/14/2012 1:32 AM, Mark Hammond wrote:
As per comments later in the thread, I'm -1 on including
"python{py_version_short}" in the lib directories for a number of
reasons; one further reason not outlined is that it would potentially
make running Python directly from a built tree difficult. For the same
reason, I'm also -1 on having that in the include dir.
A built tree would look the same as always - the directories would only
be moved (if at all) during installation. Thus, you will still be able
to run python directly from a built installation.
Also note that the py_version_short will not be in platform installs.
scripts = {base/userbase}/bin
We should note that this may cause pain for a number of projects - I've
seen quite a few projects that already assume "Scripts" on Windows - eg,
virtualenv and setuptools IIRC
If you look at these projects, though, they *special case* Windows to
account for the different layout. Removing this difference will allow
these projects to remove their special-casing code.
- and also assume the executable is where
it currently lives - one example off the top of my head is the mozilla
"jetpack" project - see:
https://github.com/mozilla/addon-sdk/blob/master/bin/activate.bat#L117
This code actually reinforces my point:
First, this code would actually still work. The section ":FoundPython"
sets the PATH to "%VIRTUAL_ENV%\bin;%PYTHONINSTALL%;%PATH%" (L80), which
would still allow python.exe to be found and run.
Second, look at that line again. Mozilla actually has edited this code
so that the jetpack uses a cross-platform "bin" convention, just as I am
proposing.
Third, one element of this proposal is that there would be a key placed
in the registry that points directly to the location of the python
executable, making locating it trivial to locate programmatically on
Windows.
Thanks,
Van
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